Test Overview
Test Usage

Prenatal screen for possible maternal-fetal blood incompatibility. Recommended at 28 weeks gestation for Rh negative women and those women at increased risk of sensitization due to clinical history and/or prior sensitization, such as previous history of antibody production, history of red cell transfusion, or placental incompetence.

Reference Range *

Negative

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

Will not detect all maternal-fetal incompatibilities or all antibodies present in a patient's serum.

Test Details
Days Set Up
Daily, 24 hours
Analytic Time

24 hours

Soft Order Code
AS
MiChart Code
Antibody Screen
Synonyms
  • Indirect Antiglobulin Test
  • AS.
  • Blood Type, Antibody Screen, Prenatal
  • Prenatal Antibody Screen
  • Red Cell Antibody Screen, Prenatal
  • ANTIBODY SCREEN
  • AUTOMATED ANTIBODY SCREEN
  • ABSC INT
  • ABSCR
  • AUTOMATED ANTIBODY SCREEN INT
Laboratory
Blood Bank
Section
Blood Bank
Specimen Requirements
Collection Instructions

Collect specimen in a pink top tube. Send intact specimen at room temperature. Specimens are unacceptable if collected in serum separator tube, contaminated, or grossly hemolyzed. Specimens sent for Blood Bank testing cannot be split for use by other laboratories.

Alternate Specimen
IN-HOUSE: Lavender top tube (intact specimen) may be substituted for Pink top. All other specimen types are unacceptable. MLABS: Pink top tube (intact specimen) is preferred; the following are acceptable: lavender top (glass or plastic), red top (glass only), plasma aliquot from pink or lavender top, serum aliquot from red top. Plastic red top tubes will be rejected without exception. [9/03; rev 4/04]
Pink Top Tube
Normal Volume
6 mL whole blood
Minimum Volume
2 mL whole blood
Storage Temperature
R
Additional Information

If Antibody Screen is positive, Antibody Identification and Prenatal Antibody Titer will be performed at an additional charge. By ordering this test the clinician acknowledges that additional reflex testing will be performed and billed at a separate additional charge if indicated.

Billing
CPT Code
86850
Fee Code
21253
Resources